ISRO Scientist or Engineer Electrical 2014

Instructions

For the following questions answer them individually

Question 31

The moving coil in a dynamometer wattmeter is connected

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Question 32

For an unbalanced fault with paths for zero sequence currents, at the point of fault

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Question 33

An ideal OPAMP is used to make an inverting amplifier. The two input terminals of the OPAMP are at the same potential because,

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Question 34

What is the “swamping” resistance which is connectedin series with the working coil of a voltmeter to drastically reduce the error in measurement caused due to variation in
temperature is made up of?

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Question 35

If the poles of a system lie on the imaginary axis, the system will be:

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Question 36

Which one of the following is the most likely reason for large overshoot in a control system

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Question 37

Which of the following correctly represents the sequence of operations of isolator circuit breaker and earthing switch while opening a circuit

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Question 38

A comparator circuit is used to

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Question 39

Out of the following methods of heating the one which is independent of supply frequency is

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Question 40

An SCR triggered by current pulse applied to gate-cathode can be turned OFF

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